<template>
	<view class="cart-container" v-if="cart.length !== 0">
		<my-address></my-address>
		<view class="cart-title">
			<uni-icons type="shop" size="18"></uni-icons>
			<text class="cart-title-text"></text>
		</view>
		<!-- uni-swipe-action 是最外层包裹性质的容器 -->
		<uni-swipe-action>
			<block v-for="(goods,i) in cart" :key="i">
				<!-- uni-swipe-action-item 可以为其子节点提供滑动操作的效果, 需要通过options 属性来指定操作按钮的配置信息 -->
				<uni-swipe-action-item :right-options="options" @click="swipeActionClickHandler(goods)">
					<my-goods :goods="goods" :show-radio="true" @radio-change="radioChangeHandler" :showNum="true"
						@num-change="numberChangeHandler"></my-goods>
				</uni-swipe-action-item>
			</block>
		</uni-swipe-action>
		<!-- 计算区域 -->
		<my-settle></my-settle>
	</view>
	<view class="empty-cart" v-else>
		<image src="/static/cart_empty@2x.png" class="empty-img"></image>
		<text class="tip-text">空空如也~</text>
	</view>
</template>

<script>
	import badgeMix from '@/mixins/tabbar-badge.js'
	import {
		mapState,
		mapMutations
	} from 'vuex'

	export default {
		data() {
			return {
				options: [{
					//显示的文本内容
					text: '删除',
					style: {
						//按钮的背景颜色
						backgroundColor: '#C00000'
					}
				}]
			}
		},
		mixins: [badgeMix],
		computed: {
			...mapState('m_cart', ['cart'])
		},
		methods: {
			...mapMutations('m_cart', ['updateGoods', 'removeGoodsById']),
			radioChangeHandler(e) {
				this.updateGoods(e)
			},
			numberChangeHandler(e) {
				this.updateGoods(e)
			},
			swipeActionClickHandler(goods) {
				this.removeGoodsById(goods.goods_id)
			}
		}
	}
</script>

<style lang="scss" scoped>
	.cart-title {
		height: 40px;
		display: flex;
		align-items: center;
		font-size: 14px;
		padding-left: 5px;
		border-bottom: 1px solid #efefef;

		.cart-title-text {
			margin-left: 10px;
		}
	}

	.cart-container {
		padding-bottom: 50px;
	}

	.empty-cart {
		display: flex;
		flex-direction: column;
		align-items: center;
		padding-top: 150px;

		.empty-img {
			width: 90px;
			height: 90px;

		}

		.tip-text {
			font-size: 12px;
			color: gray;
			margin-top: 15px;

		}
	}
</style>